Cold Resistant Conveyor Belt
Cold Resistant Conveyor Belt

Cold Resistant Conveyor Belt

QBF rubber’s cold resistant conveyor belt stays flexible down to 50°C. Flame retardant, oil resistant & anti abrasive options for cold climate open pit mining, port and power plant bulk conveying. Multiple belt carcass styles available.

Product Overview

QBF rubber cold resistant conveyor belt ensures stable material handling in extreme cold conditions.

Anyone using standard belts at freezing job sites knows the common issues: rubber turns rigid, cracks and loses elasticity in low temperatures. These defects cause unplanned downtime, higher repair costs and potential safety hazards.

Our custom cold resistant cover rubber solves these on site problems. The specialized compound retains flexibility, tensile strength and wear resistance in deep freeze. It is a key conveying component for facilities operating in persistent cold environments.

 

Why Choose QBF rubber Cold Resistant Conveyor Belt

We do not just use general purpose rubber with minor adjustments. Every cold resistant belt comes from specially formulated rubber compounds mixed in house.

Many suppliers simply lower rubber hardness and call their belts “cold resistant”. Those cheap alternatives turn brittle after several weeks in continuous sub zero conditions. Our formula keeps stable performance through repeated freeze thaw cycles, which is very common for outdoor mines and ports.

  • Strict lab cold resistance test before every batch shipment
  • Real world field proven in high latitude cold mining sites
  • Custom compound mixing to match your exact working conditions
  • Full traceability for rubber raw materials
  • Test reports available upon request for your project tender

 

Key Features

  • Very reliable cold weather performance
  • Holds high rubber elasticity under freezing conditions
  • Good shock absorption when heavy bulk materials drop onto the belt
  • All core mechanical properties hold steady down to 50 °C for consistent production
  • Handles different bulk materials in extreme cold working conditions
  • Flame retardant cover option for locations with fire hazards
  • Oil resistant cover for sites exposed to grease or mineral oil
  • Heavy duty anti abrasive cover for high wear material transport

 

Supported Belt Constructions

  • Multitrans
  • Sempercord
  • Metalcord
  • Metaltrans
  • Autostable
  • Ripstop (tear resistant for sharp, jagged bulk material)

 

Cover Rubber Physical Properties

Meets industry standard HG/T 3647 2014

Parameters Grade H Grade D Grade L
Tensile Strength (Mpa) 24 18 15
Elongation at Break (%) 450 400 350
Aging Test (70℃, 7d) Change of Tensile Strength % ±25 ±25 ±25
Aging Test (70℃, 7d) Change of Elongation at Break % ±25 ±25 ±25
Abrasion Loss mm³ 120 100 200
Tensile Cold resistant Coefficient mm³ C1 (-45℃) 0.3
Tensile Cold resistant Coefficient mm³ C2 (-50℃) 0.2
Change of Tensile Strength % C1 (-45℃) ±20
Change of Tensile Strength % C2 (-50℃) ±25
Change of Elongation at Break % C1 (-45℃) ±20
Change of Elongation at Break % C2 (-50℃) ±30

 

Quick Selection Guide

Think over these points before sending your inquiry:

  1. Minimum site temperature: Confirm your lowest ambient temperature, choose C1 (-45℃ max) or C2 (-50℃ max) grade
  2. Material being conveyed: Is it sharp rock, heavy ore, oily coal, or combustible material? Decide if you need extra oil resistant, flame retardant or heavy anti abrasive cover
  3. Belt strength requirement: Textile carcass or steel cord carcass? Tell us your required tensile strength
  4. Working environment: Indoor workshop or fully open air site with wind chill? Wind chill will make actual belt surface temperature even lower than air reading.

Tip: Wind chill effect matters! If your location has strong cold wind, we suggest upgrading to one grade colder for longer service life.

 

Typical Application Scenarios

  • Cold region open pit mining
  • Lignite coal and hard rock mining
  • Quarries & aggregate yards
  • Long distance overland conveyor lines
  • Ore and mineral processing plants
  • Bulk cargo port terminals in cold areas
  • Power and heating plants

 

Expected Service Life

Belt service life heavily depends on loading weight, material sharpness, impact force and actual minimum operating temperature.

When operated within our designed temperature range and with correct installation & maintenance:

  • For open pit mine overland lines: Normally 12 24 months
  • For port & power plant bulk conveying: Normally 18 30 months

Running the belt below its rated minimum temperature will drastically shorten service life and cause unexpected cracking damage.

 

Supported Belt Constructions

  • Multitrans
  • Sempercord
  • Metalcord
  • Metaltrans
  • Autostable
  • Ripstop (tear resistant for sharp, jagged bulk material)

 

FAQ

Q1: What belt carcass types pair up with this cold resistant rubber cover?

A: Our cold resistant covers work with many carcass constructions: textile reinforced Multitrans, Sempercord, steel cord Metalcord and Metaltrans, Autostable and rip stop tear resistant belts. Send over your required belt strength, and we can put together a proper suggestion.

Q2: Which industries order cold resistant conveyor belts most often?

A: Buyers mainly come from open pit mines, high latitude port terminals, power plants, rock quarries and mineral processing facilities in cold climate zones.

Q3: Does wind chill affect cold resistant conveyor belt performance?

A: Yes. Wind chill drops the real surface temperature of belt far below the air thermometer reading. For windy cold exposed sites, we often recommend C2 grade even if local recorded low temperature is only 42℃.

Q4: Can cold resistant belts work in hot summer weather as well?

A: Yes. Both C1 and C2 grades work fine up to +45℃. They handle big seasonal temperature swings, which is perfect for locations with freezing winter and hot summer.

Q5: What test methods do you use for cold resistance performance?

A: Our lab runs tensile cold resistant coefficient test following HG/T 3647 2014 standard for every batch. Test reports can be provided for tender or project review.

 

Daily Maintenance Tips for Cold Resistant Conveyor Belts

1.Keep belt surface clean from ice and snow build up. Thick ice will increase load and accelerate rubber fatigue.

2.Check cover rubber surface regularly for tiny cracks during cold seasons. Early inspection avoids sudden belt tearing.

3.Adjust pulley and roller alignment correctly. Misalignment creates extra stress and speeds up cracking under cold conditions.

4.Do not apply harsh chemical solvents onto cold resistant rubber cover. Solvents will destroy low temperature rubber performance.

 

Products

Sidewall Conveyor Belt

Sidewall Conveyor Belt

QBF rubber specializes in designing and manufacturing high-quality steep incline conveyor belts for bulk material lifting across industries such as harbors, metallurgy, tunneling, power plants, chemicals, cement, and metro. As the only Chinese manufacturer using full European molds and standards, QBF rubber provides complete solutions covering belt selection, production, installation, commissioning, and trouble shooting.
Pocket Type Conveyor Belt

Pocket Type Conveyor Belt

Developed from high angle sidewall belts and high capacity bucket elevators, the Pocket Type Conveyor Belt (Pocketlift) suits underground mining, tunnels, port handling and large volume silo feeding, with lifting heights up to 800 meters.
It handles ultra high lift, high throughput tasks beyond conventional high angle sidewall belts, realizing stable continuous bulk material transportation.
Rope track Sidewall Conveyor Belt

Rope-track Sidewall Conveyor Belt

RopeTrack corrugated sidewall steel cord conveyor belt for overhead cable conveying. ST10000 high strength, 25000 t/h throughput for mine, quarry & complex terrain long distance bulk transport. Custom engineering available.
Bucket Elevator Conveyor Belt

Bucket Elevator Conveyor Belt

Bucket elevator conveyor belts are cost effective core components for vertical bulk material handling, supporting lifting heights over 100 meters. Reinforced with high grade tear resistant polyester canvas or optional steel cord anti tear layers for heavy duty use.
They deliver low elongation, high throughput and stable operation with easy maintenance, helping operators reduce downtime from belt failures and frequent replacements.
Pipe Conveyor Belt

Pipe Conveyor Belt

Pipe conveyor belt (tubular conveyor belt) folds into a closed tube in operation, fully containing bulk materials to eliminate spillage and dust emissions while shielding cargo from external contamination.
Supporting sharp horizontal and vertical bends, it meets strict environmental requirements and helps plants remove redundant transfer points, favored by operators troubled by on site dust and leakage issues.
Chevron Conveyor Belt

Chevron Conveyor Belt

Chevron conveyor belt, fitted with raised chevron cleats, is designed for steep angle conveying to prevent bulk material sliding and fallback, an issue common for smooth flat belts.
Various chevron patterns are available for different slope demands. Widely used in mining, farming, construction and recycling, it maintains stable performance under harsh on site working conditions.

Recent news

Sidewall Conveyor Belt Sagging Solutions QBF rubber Free Zone Base Belt Design Extends Service Life by 30%

Sidewall Conveyor Belt Sagging Solutions: QBF rubber Free Zone Base Belt Design Extends Service Life by 30%

Sep 18, 2026

According to industry statistics, up to 80% of sidewall conveyor belt failures occur due to rigidity loss–induced sagging during operation. QBF rubberaddresses this root cause with an innovative “free zone ” base belt design, significantly extending the service life of sidewall conveyor belts. What Is Belt Sagging and Why Does It Shorten Belt Life? Under heavy load, especially on the return run, the base belt often sags due to insufficient transverse rigidity. This sagging triggers a chain of serious issues: Stress concentration – Sagging causes abnormal flexing at the sidewall root as it passes over the drum, concentrating stress in a localized area. Fatigue cracking – Repeated flexing leads to fatigue cracks at the sidewall root, which can develop into through-wall damage. Baffle detachment – Vibration and deformation from sagging transfer to the baffle connection, accelerating adhesive aging and causing baffle loosening or separation. Once sidewall tearing or baffle detachment occurs, the entire sidewall conveyor belt often fails prematurely. Therefore, solving the sagging problem is the key to extending belt service life. Root Cause of Belt Sagging The core cause of sagging lies in structural deficiencies of traditional base belt designs: Insufficient transverse rigidity – Traditional base belts cannot maintain a flat profile under heavy loads or long-span conditions. Unbuffered stress transfer – The sidewall-to-base belt connection lacks a flexible transition, so abnormal sagging stress directly impacts the sidewall root. Accelerated fatigue accumulation – Repeated flexing at stress concentration points causes cracks to grow from micro to macro levels. Understanding these causes makes it clear: simply increasing sidewall thickness or changing the rubber compound is a temporary fix. The solution must start with the base belt structure. Solution: QBF rubber Free Zone Base Belt Design QBF rubber introduces a “free zone ” base belt design to directly target the root cause of sagging. How the free zone  Works Blocks stress transfer – The free zone  acts as a stress buffer, absorbing and isolating abnormal sagging stress before it reaches the sidewall root. Dissipates flexing energy – The flexible edge allows the base belt to adaptively deform as it passes over the drum, spreading concentrated flexing over a larger area. Protects sidewall and baffles – By mitigating the extra load caused by sagging, the risk of fatigue tearing at the sidewall root is greatly reduced, and the baffle adhesive layer no longer suffers excessive vibration stress. Key Advantages of the free zone  Design Advantage Result sidewall tear resistance Eliminates stress concentration points; fatigue life extended by 2–3 times Baffle detachment risk Smoother operation; significantly slower adhesive aging Overall belt service life Comprehensive service life increased by 30% or more   QBF rubber’s Free Zone Base Belt design achieves a leap from “reacting to sagging consequences” to “eliminating the root cause of sagging.” Summary: Eliminate Sagging at the Source for Longer Sidewall Belt Life The sagging problem in heavy-duty sidewall conveyor belts originates in the base belt structure. QBF rubber’s free zone  design solves this industry pain point by blocking stress transfer, dissipating flexing energy, and protecting both sidewall and baffles. If you are experiencing frequent sagging, sidewall tearing, or baffle detachment with your sidewall conveyor belt, contact QBF rubber for professional technical support and customized solutions.  
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QBF Rubber Anti stick Sidewall Belting Helps Shenzhen Tunnel Construction

QBF Rubber Anti-stick Sidewall Belting Helps Shenzhen Tunnel Construction

Sep 18, 2026

The customized S400 B1800 TCS360 anti-stick Sidewall Belt — developed by QBF Rubber for the Shenzhen Tunnel Project — is now under installation! With a total length of 190m, this high-performance non-stick belt is set to play a crucial role in ensuring smooth and efficient tunnel construction. More Than Just a Product – Full-Service Support! Our after-sales team is fully committed to providing: ✔ Tailored installation plans ✔ Professional on-site guidance ✔ Hot vulcanization splicing services ✔ Comprehensive commissioning & operation support Every step is meticulously handled to ensure flawless performance of the sidewall belt!   Technology + Service Facilitate Tunnel Construction “This cooperation reflects QBF rubber’s R&D strength and service capability in the field of special conveyor belts,” the project manager said, “The application of the anti-stick sidewall conveyor belt will significantly improve the conveying efficiency, reduce the downtime for maintenance, and provide key support for the project to be pushed forward on schedule.” In the future, QBF rubber will continue to focus on technological innovation and customer needs to provide more efficient and durable conveyor system solutions for global infrastructural projects.  
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Mining Vertical Lifting System Solution Tackling Continuous Conveying Challenges for Deep Mine Operations

Mining Vertical Lifting System Solution: Tackling Continuous Conveying Challenges for Deep-Mine Operations

Sep 17, 2026

As mining operations go deeper, vertical lifting efficiency and safety have become major constraints on mine output. Designed for deep shafts, inclined shafts and complex terrain, our vertical lifting system works across 0 500 m vertical heights and supports steep angle, long distance material transport. Thanks to modular design, high throughput and full lifecycle services, it has gained wide attention in the mining material handling industry.   Three Core Solutions for Varied Lifting Applications Our portfolio includes three main product lines to cover diverse vertical transport demands. Steep Angle Sidewall Conveyor Solution Engineered as an alternative to conventional mine cages, this solution handles vertical heights from 0 m to 500 m. In inclined shaft conditions, throughput can exceed 10 000 tons per hour. It overcomes the low efficiency, intermittent nature of cage hoisting and enables fast, continuous material transfer from underground to surface. Pocket Type Vertical Lifting System Optimized for high height, high volume tasks, this system is ideal for muck removal shaft main lines and blind shaft intermediate transfer. Proven in tunneling projects, it runs stably above 250 m lift height with capacities over 800 m³/h. It fills performance gaps under tight space conditions and can reach lifting heights over 500 m. Long Distance Rope track Conveying System Boasting single spans beyond 2 000 m, this system serves mountain and river valley sites. It reduces transfer points, cuts energy consumption and lowers overall maintenance costs for difficult terrain material haulage. Full Chain “EPC+M+O” Service Model Beyond equipment supply, Bairui provides a complete EPC+M+O service package: E (Evaluation & Custom Design): Custom engineer conveyors and belts based on mine geology, production targets and existing site infrastructure. P (Core Equipment Manufacturing): In house production of sidewall belts, lifting pockets and drive units for reliable quality and on time delivery. C (Installation Guidance): On site technical support for installation and commissioning to ensure smooth startup. M (Operation Management): Partial or full operational outsourcing to help mines hit production targets quickly. O (Smart O&M): Condition monitoring and predictive maintenance platform for early fault warnings and optimized maintenance schedules. Key Benefits vs Traditional Lifting Equipment For shafts deeper than 500 m, traditional multi rope friction hoists suffer from short rope life, batch type loading and complex controls. The Steep Angle Sidewall Conveyor Solution fits compactly within limited shaft space. Its continuous output connects directly to processing plants or silos, eliminating intermediate stockpiles and re handling expenses. In tunnel construction, the Pocket Type Vertical Lifting System features small turning radii and steep climbing performance. It has replaced imported equipment on multiple inclined shaft tunnel projects, delivering local manufactured cost savings. It requires minimal maintenance space and tolerates heavy dust and poor water conditions.   Field Proven Project Experience Our solutions are operational across global metal mines, coal mines and large tunneling infrastructure. China’s first 255 m mine used vertical lifting system is now in service, boosting vertical conveying efficiency by over 10× with safe, energy saving and eco friendly operation. September Global Exhibition Roadshow This September, Bairuifu will attend four key mining expos across Central Asia, Africa and China to showcase our full vertical lifting portfolio and EPC+M+O service model. Industry professionals are welcome to visit our booths for technical exchanges.   Exhibition Schedule Mining World Central Asia 2026 Sep 16 18, 2026|Atakent International Exhibition Centre, Almaty | Booth: 11 307   Electra Mining Africa 2026 Sep 7 11, 2026|Johannesburg Expo Centre | Booth: P10   The 28th China Mining Conference and Exhibitlon Sep 10 12, 2026|Meijiang Convention and Exhibition Center, Tianjin | Booth: N2 2607   The 20th Yulin International Coal and High-end Energy Chemical Industry Expo Sep 13 15, 2026|Yulin Convention & Exhibition Center| Booth: H342 / H335  
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See Latest Service

Hot‑vulcanized Splice

Our team provides professional 24/7 hot vulcanized splicing for sidewall, steel cord, fabric and pipe conveyor belts. Staffed with fully trained, experienced technicians and equipped with advanced mobile and stationary vulcanizing presses, we deliver seamless, long-lasting belt joints that optimize both technical performance and overall operational costs.
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Selection Guide

QBF rubber provides professional customized sidewall belt selection services for all types of industrial inclined conveying scenarios. Supported by our independent self-developed selection system and senior German technical experts, we deliver accurate, application-oriented belt solutions tailored to actual site conditions, avoiding specification mismatches and unnecessary performance waste for optimal system operation.
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Maintenance Service

We deliver reliable, plant-focused conveyor belt and system maintenance services designed to prevent unplanned downtime. Our certified on-site teams provide round-the-clock support for routine inspections, belt realignment, wear repairs, component replacements and system tuning. We help industrial facilities maintain stable throughput while lowering long-term operational and maintenance overhead.
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